A bubble generating assembly has a housing, an air generator associated with the housing, a bubble producing device positioned in front of the air generator to receive air generated from the air generator, and a cover or dipping cup configured as an inverted cup. The cover or dipping cup has an interior...http://www.google.fr/patents/US6547622?utm_source=gb-gplus-shareBrevet US6547622 - Bubble generating assemblies
